Transmission control system
US9199630B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2014 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | May 21, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M9/123
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A transmission control system is provided for used in a bicycle having a crank, a front sprocket that is rotatable independent of the crank, a rear wheel, a rear sprocket that is rotatable independent of the rear wheel, a chain that engages with the front sprocket and the rear sprocket, and at least one external transmission mechanism. The transmission control system is basically provided with a driving force output device, a detection device and at least one controller. The detection device is one of a rotational state detection device, a manual drive force detecting device and a speed detection device. The at least one controller is programmed to control the driving force output device to drive the chain and to control a gear shifting action of the at least one external transmission mechanism to shift gears, based on a comparison of the detection results by the detection device and a prescribed state or a prescribed value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.